Nitrogen and Test Weight in Oats

Transcription

1 Nitrogen and Test Weight in Oats May, W.E. 1 Agriculture and Agri-food Canada Indian Head, Saskatchewan, Canada

2 Nitrogen Rate and Cultivar Test Weight (g/0.5l) Nitrogen Rate (kg/ha) AC Assinaboia CDC Pacer

3 Test Weight Stability Treatment Factors: 1) Cultivars Four cultivars (cultivars picked for each location based on two popular and two new cultivars with potential) Location Indian Head: Melfort: Redvers: Yorkton: Varieties CDC Ruffian CS Camden CDC Big Brown CDC Minstrel AC Morgan CDC Seabiscuit Justice Souris CDC Morrison CDC Dancer Summit Triactor 2) Nitrogen Rate (kg N ha -1 ) I) 40 II) 60 III) 80 IV) 120

4 Nitrogen x Cultivar at Melfort in 2014 Grain Yield (bu/acre) AC Morgan CDC Minstrel CDC Seabiscuit

5 Nitrogen x Cultivar at Melfort in 2014 Test weight (g/0.5 L) AC Morgan CDC Minstrel CDC Seabiscuit

6 Nitrogen x Cultivar at Melfort in 2015 Grain Yield (bu/acre) AC Morgan CDC Minstrel CDC Seabiscuit

7 Nitrogen x Cultivar at Melfort in Test weight (g/0.5 L) AC Morgan CDC Minstrel CDC Seabiscuit

8 Nitrogen x Cultivar at Melfort in 2016 Grain Yield (bu/acre) AC Morgan CDC Minstrel CDC Seabiscuit

9 Nitrogen x Cultivar at Melfort in Test weight (g/0.5 L) AC Morgan CDC Minstrel CDC Seabiscuit

10 Nitrogen x Cultivar at Indian Head in 2014 Grain Yield (bu/acre) CDC Big Brown CDC Orrin Pinnacle

11 Nitrogen x Cultivar at Indian Head in Test weight (g/0.5 L) CDC Big Brown CDC Orrin Pinnacle

12 Nitrogen x Cultivar at Indian Head in 2015 Grain Yield (bu/acre) CDC Big Brown CDC Ruffian CS Camden

13 Nitrogen x Cultivar at Indian Head in Test weight (g/0.5 L) CDC Big Brown CDC Ruffian CS Camden

14 Nitrogen x Cultivar at Indian Head in 2016 Grain Yield (bu/acre) CDC Big Brown CDC Ruffian CS Camden

15 Nitrogen x Cultivar at Indian Head in Test weight (g/0.5 L) CDC Big Brown CDC Ruffian CS Camden

16 Nitrogen x Cultivar at Yorkton in 2014 Grain Yield (bu/acre) CDC Dancer Summit Triactor

17 Nitrogen x Cultivar at Yorkton in Test weight (g/0.5 L) CDC Dancer Summit Triactor

18 Nitrogen x Cultivar at Yorkton in 2015 Grain Yield (bu/acre) CDC Dancer Summit Triactor

19 Nitrogen x Cultivar at Yorkton in 2015 Test weight (g/0.5 L) CDC Dancer Summit Triactor

20 Nitrogen x Cultivar at Redvers in 2015 Grain Yield (bu/acre) CDC Morrison Leggett Souris

21 Nitrogen x Cultivar at Redvers in Test weight (g/0.5 L) CDC Morrison Leggett Souris

22 Nitrogen x Cultivar at Redvers in 2016 Grain Yield (bu/acre) CDC Morrison Justice Souris

23 Nitrogen x Cultivar at Redvers in Test weight (g/0.5 L) CDC Morrison Justice Souris

24 Crop Sequencing of Large acreage crops and special crops Experimental Design: Strip plot Replication: 4 Locations: Indian Head, Melfort, Saskatoon, Swift Current The use of these locations should help us to determine if beneficial crop sequences change as we move from a typical warmer and drier environment to wetter cooler environments. Year A All eight crops are seeded in strips resulting in 32 strips (8 x 4reps) Year B In year B the same crops are seeded perpendicular to the strips in year A. This results in 256 plots (8 proceeding crops x 8 crops x 4 reps)

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26 2 Wheat bc 3 Wheat d Oat Canola 10 Oat c 11 Oat d Oat Canola 18 Canola bc 19 Canola de Oat Canola 26 Pea ab 27 Pea d Oat Canola Canarysee 34 d ab Canarysee 35 d d Oat Canola 42 Hemp a 43 Hemp d Oat Canola 50 Quinoa ab 51 Quinoa d Oat Canola

27 Main Plot Rotation (all crops) Continuous oat oat-canola-oat-pea-oat oat-canola-barely-pea-oat Factors: 2) Oat Seeding rate (seeds/m2) (oat only), 400 Oat Cultivar (oat only) Summit (semi-dwarf) CDC Seabiscuit (Tall) Row Spacing (all crops): Narrow 25 cm (14 x 35) Wide 40 cm (11 x 35)

28 Starting point Phase in Rotation A (pea stubble) B (wheat stubble) C (Broadleaf stubble) D (oat, canola, lentil or pea stubble) Justification Rotations All phases of the rotation are grown in each year 24 treatments 4 reps Wheat Wheat Wheat Wheat Wheat Wheat Canola Pea Pea Pea Lentil Canola oat oat Canola Lentil oat Pea Pea Pea Pea Pea Pea Canola Cerealoilseedpulse in a rotation, expected to be the most sustainable rotation system Intensified pea-based rotation with cereal as a break crop Intensified broadleaf crop with 1 cereal as a break crop Intensified pulsebased rotation, 2 species with 1 cereal as a break crop Intensified pulsebased rotation, 2 species with cereal as a break crop Intensified canolabased rotation with cereal and pulse between

29 Seeding Rate of Oats

30 Seeding Rate and Wild Oats 95 Grain Yield (bu/acre) low (10 WO/m2) high (27 WO/ m2) (14) (23) (32) (42) Seeding Rate (Seeds/m 2 )

31 Grain Yield, Seeding Rate and Wild Oats Grain Yield (kg ha -1 ) seeds m seeds m seeds m seeds m Wild Oat Density (plants m -2 )

32 Seeding Rate and Wild Oats Wild Oat Biomass (lb/acre) Seeding Rate (Seeds/m 2 ) low (10 WO/m2) high (27 WO/ m2) (14) (23) (32) (42)

33 Wild Oat Biomass and Tame Oat Seeding Rate Wild Oat Biomass (kg ha -1 ) seeds m seeds m seeds m seeds m Wild Oat Density (plants m -2 )